The cardiac cycle is the:
A)sequence in which blood flows through the heart valves
B)pathway of blood throughout the body and lungs
C)pathway of blood through the heart
D)sequence of events in one heartbeat

Question

Quizplus · Accepted Answer

The cardiac cycle refers to the sequence of events in one heartbeat, including the contraction (systole) and relaxation (diastole) of the heart chambers and the opening and closing of the heart valves.

The Cardiac Cycle Is The